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Commit 0ea6822f authored by Rahul Sharma's avatar Rahul Sharma Committed by Inki Dae
Browse files

drm/exynos: implement display-mode-check callback in mixer driver 



This patch adds the implementation of check_timing callback in the mixer
driver. Based on the mixer version, correct set of restrictions will be
exposed by the mixer driver. A resolution will be acceptable only if passes
the criteria set by mixer and hdmi IPs.

Signed-off-by: default avatarRahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: default avatarSean Paul <seanpaul@chromium.org>
Signed-off-by: default avatarInki Dae <inki.dae@samsung.com>
parent 438c0f85

drivers/gpu/drm/exynos/exynos_mixer.c

+26 −0
Original line number Diff line number Diff line
@@ -818,6 +818,29 @@ static void mixer_win_disable(void *ctx, int win) 
	mixer_ctx->win_data[win].enabled = false;

}



int mixer_check_timing(void *ctx, struct fb_videomode *timing)

{

	struct mixer_context *mixer_ctx = ctx;

	u32 w, h;



	w = timing->xres;

	h = timing->yres;



	DRM_DEBUG_KMS("%s : xres=%d, yres=%d, refresh=%d, intl=%d\n",

		__func__, timing->xres, timing->yres,

		timing->refresh, (timing->vmode &

		FB_VMODE_INTERLACED) ? true : false);



	if (mixer_ctx->mxr_ver == MXR_VER_0_0_0_16)

		return 0;



	if ((w >= 464 && w <= 720 && h >= 261 && h <= 576) ||

		(w >= 1024 && w <= 1280 && h >= 576 && h <= 720) ||

		(w >= 1664 && w <= 1920 && h >= 936 && h <= 1080))

		return 0;



	return -EINVAL;

}

static void mixer_wait_for_vblank(void *ctx)

{

	struct mixer_context *mixer_ctx = ctx;
@@ -955,6 +978,9 @@ static struct exynos_mixer_ops mixer_ops = { 
	.win_mode_set		= mixer_win_mode_set,

	.win_commit		= mixer_win_commit,

	.win_disable		= mixer_win_disable,



	/* display */

	.check_timing		= mixer_check_timing,

};



static irqreturn_t mixer_irq_handler(int irq, void *arg)